To improve heat transfer in surface probes

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Testo 112, 1-channel temperature measuring instrument NTC/Pt100, calibratable, with battery.

The testo 175T2 temperature data logger features a large display and alarm indication that makes it ideal for continuous monitoring of temperatures. The temperature measurement logger has both an internal NTC thermistor, as well as capability for an external NTC probe connection, which allows for simultaneous measurements of ambient and product temperatures. Creation of Excel Spreadsheets, PDFs, and data analysis are all easily achieved with the free, downloadable ComSoft software.

The testo 176H1 humidity and temperature measurement logger has a large display that makes it ideal for the monitoring of temperature and humidty in enviro chamber and storage rooms. The 176H1 is a RH and temperature data logger with external NTC humidity and temperature sensor connections. Creation of Excel Spreadsheets, PDFs, and data analysis are all easily achieved with the free, downloadable ComSoft software.

With this kit, you&rsquo;ll be ready to start your measurements in the commissioning, servicing and maintenance of refrigeration and air conditioning systems and heat pumps straight away: You will get the testo 550s smart digital manifold with Bluetooth and 2-way valve block, two wired clamp temperature probes (NTC) and a rugged transport case. Additional Bluetooth probes, e.g. for wireless measurements of temperature and vacuum, are available separately. 
 
*A2L Refrigerant Compliant*

Start your wireless measurements on refrigeration and air conditioning systems and heat pumps straight away. The practical kit containing the testo 558s digital manifold with Bluetooth connection to the wireless temperature and vacuum probes, together with the 4-hose charging set included in the kit, offers the ideal basis for carrying out everyday measuring tasks. The testo 558s offers intuitive operation thanks to its touchscreen and clear measurement graphs on a large colour display. In addition to the touchscreen, the manifold can also be operated via keys when working with gloves. Thanks to its A3 and A2L compatibility, high robustness with IP54 and hybrid charging system comprising rechargeable and non-rechargeable batteries, the manifold is ideal for every situation.

The testo 570s digital manifold with Bluetooth and 4-way valve block is the optimal solution for long-term measurements on refrigeration and air conditioning systems as well as heat pumps. Intelligent error analysis in the testo Smart App allows anomalies to be detected quickly and reliably. testo 570s boasts the world&#39;s longest runtime of up to 360 hours, a large data memory and a high degree of measuring accuracy, making it a reliable partner for both long-term and short-term measurements. 
 
*A2L / A2 / A3 Compliant*

Start your wireless measurements on refrigeration and air conditioning systems and heat pumps straight away. The practical kit containing the testo 570s digital manifold with Bluetooth and 4-way valve block together with the wireless temperature and vacuum probes is ideal for long-term and standard measurements. The intelligent error analysis in the testo Smart App ensures reliable diagnostics following a long-term measurement, eliminating the need for lengthy searches. And with the world&#39;s longest battery life of 360 hours, testo 570s is ideal for long-term measurements, but also for all kinds of short-term applications over the course of a working week. In addition, with a measuring accuracy of 0.25% fs, the manifolds offer maximum precision even at low pressure values. 
 
*A2L / A2 / A3 Compliant* 
*2024 MODEL* 
*SAVE $71 INSTANTLY during checkout in the testo Web Shop!*

Start your wireless measurements on refrigeration and air conditioning systems and heat pumps straight away. The practical kit containing the testo 570s digital manifold with Bluetooth and 4-way valve block together with the wireless temperature and vacuum probes plus filling hoses is ideal for long-term and standard measurements. The intelligent error analysis in the testo Smart App ensures reliable diagnostics following a long-term measurement, eliminating the need for lengthy searches. And with the world&#39;s longest battery life of 360 hours, testo 570s is ideal for long-term measurements, but also for all kinds of short-term applications over the course of a working week. In addition, with a measuring accuracy of 0.25% fs, the manifolds offer maximum precision even at low pressure values. 
 
*A2L / A2 / A3 Compliant* 
*2024 MODEL*

<div style="background-color:#dae4ea; border: 1px solid #648798; padding: 10px;">Are you interested in this measuring instrument? Testo has put together practical kits for you – so you’ll be optimally equipped to tackle your measuring tasks right away <a href="https://www.testo.com/en-US/products/manifold">>> To the products</a></div>

The kit for wireless measurements in the field of commissioning, servicing and maintenance of refrigeration and air conditioning systems and heat pumps: You will get the testo 550s smart digital manifold with Bluetooth and 2-way valve block, two testo 115i wireless clamp thermometers (Bluetooth, NTC) and a rugged transport case. Additional Bluetooth probes, e.g. for wireless, hose-free vacuum measurements with the testo 552i, are available separately.\ 
*A2L Refrigerant Compliant* 
&nbsp;

The kit for wireless measurements in the field of commissioning, servicing and maintenance of refrigeration and air conditioning systems and heat pumps: You will get the testo 550s smart digital manifold with Bluetooth and 2-way valve block, two testo 115i wireless clamp thermometers (Bluetooth, NTC), testo 552i wireless vacuum probe (Bluetooth), and a rugged transport case. Additional Bluetooth probes are available separately. 
 
*A2L Refrigerant Compliant*

The kit for wireless measurements in the field of commissioning, servicing and maintenance of refrigeration and air conditioning systems and heat pumps: You will get the testo 550s smart digital manifold with Bluetooth and 2-way valve block, two testo 115i wireless clamp thermometers (Bluetooth, NTC), testo 552i wireless vacuum probe (Bluetooth),&nbsp; a set of 3 refrigerant hoses and a rugged transport case. Additional Bluetooth probes are available separately. 
 
*A2L Refrigerant Compliant*

The testo 557s digital manifold with Bluetooth and a 4-way valve block features a large graphic display, a compact, robust housing, guided measurement menus and the testo Smart App. Top-quality measurement technology, a high degree of reliability and smart functions for quick, easy measurements and documentation make the testo 557s manifold a reliable partner for your commissioning, servicing and maintenance of refrigeration and air conditioning systems and heat pumps.

Start your wireless measurements on refrigeration and air conditioning systems and heat pumps straight away. Thanks to the Bluetooth vacuum probe supplied, you can even measure vacuum without any cables or hoses. You will get the testo 557s smart digital manifold with Bluetooth and 4-way valve block, one testo 552i wireless vacuum probe (Bluetooth), two testo 115i wireless clamp thermometers (Bluetooth, NTC) and a robust transport case. For other wireless measurements, other optionally available testo Smart Probes are also ideal. 
 
*A2L Compliant*

For completely wireless measurements on refrigeration and air conditioning systems and heat pumps. Thanks to the Bluetooth vacuum probe supplied, you can even measure vacuum without any cables or hoses. You will get the testo 557s smart digital manifold with Bluetooth and 4-way valve block, one testo 552i wireless vacuum probe (Bluetooth), two testo 115i wireless clamp thermometers (Bluetooth, NTC), a 4 hose set&nbsp; and a rugged transport case. For other wireless measurements, the Testo Smart Probes are ideal. 
 
*A2L Compliant*

The testo 558s offers an intuitive app feel in the manifold, with touchscreen and clear measurement graphs on a large colour display. In addition to the touchscreen, the manifold can also be operated via keys when working with gloves. Thanks to its A3 and A2L compatibility, high robustness with IP54 and hybrid charging system comprising rechargeable and non-rechargeable batteries, the manifold is ideal for every situation.

Start your wireless measurements on refrigeration and air conditioning systems and heat pumps straight away. The practical kit containing the testo 558s digital manifold with Bluetooth connection to the wireless temperature and vacuum probes offers the ideal tools for everyday tasks. The testo 558s offers intuitive operation thanks to its touchscreen and clear measurement graphs on a large colour display. In addition to the touchscreen, the manifold can also be operated via keys when working with gloves. Thanks to its A3 and A2L compatibility, high robustness with IP54 and hybrid charging system comprising rechargeable and non-rechargeable batteries, the manifold is ideal for every situation.

The waterproof surface temperature probe (NTC) is ideal for measuring the temperature on refrigeration systems, in cold storage rooms, in cold storage warehouses and also outdoors. Its integrated NTC sensor means that you can also count on accurate measurement results at low temperatures.

Waterproof NTC Temperature probe that is designed with a flat tip in order to take accurate readings of surface temperatures. Probe is waterproof making it ideal for areas where possible submersion may occur.

Temperature - NTC	Measuring range -58.0° to 302.0 °F ¹⁾ / -50 to +150 °C ¹⁾
	Accuracy ±0.7 °F (Remaining Range) / ±0.4 °C (Remaining Range) ±0.5 % of mv (212° to 302 °F) / ±0.5 % of mv (100 to +150 °C) ±0.4 °F (-13° to 166.8 °F) / ±0.2 °C (-25 to +74.9 °C)
	Reaction time 35 sec
1) Long-term measurement range +125°C, short-term +150°C or +140°C (2 minutes)

General technical data	Weight 3.74 oz. / 106 g
	Dimensions 5.5 x 1.1 x 0.9 in. / 140 x 28 x 24 mm
	Length probe shaft 4.528 in. / 115 mm
	Fixed cable yes
	Cable length 3.937 ft. / 1.2 m
	Diameter probe shaft tip 0.236 in. / 6 mm
	Diameter probe shaft 0.197 in. / 5 mm
	Length probe shaft tip 1.969 in. / 50 mm
	Product colour grey

Waterproof surface probe for flat surfaces - NTC

Waterproof surface probe for flat surfaces - NTC

Temperature - NTC

Temperature - NTC

General technical data

General technical data

Accessories